US11722076B2 - Drive system and method for operating a drive system - Google Patents

Drive system and method for operating a drive system Download PDF

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Publication number
US11722076B2
US11722076B2 US17/424,655 US202017424655A US11722076B2 US 11722076 B2 US11722076 B2 US 11722076B2 US 202017424655 A US202017424655 A US 202017424655A US 11722076 B2 US11722076 B2 US 11722076B2
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coil
semiconductor switch
controllable semiconductor
voltage
drive system
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US20220131484A1 (en
Inventor
Timo Hufnagel
Hans Jürgen Kollar
Christopher Reichert
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SEW Eurodrive GmbH and Co KG
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SEW Eurodrive GmbH and Co KG
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Assigned to SEW-EURODRIVE GMBH & CO. KG reassignment SEW-EURODRIVE GMBH & CO. KG ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: Reichert, Christopher, HUFNAGEL, TIMO, KOLLAR, Hans Jürgen
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00—Conversion of dc power input into dc power output
    • H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
    • H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
    • H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
    • H02M3/156—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators
    • H02M3/158—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P3/00—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters
    • H02P3/06—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter
    • H02P3/18—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter for stopping or slowing an ac motor
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P3/00—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters
    • H02P3/02—Details of stopping control
    • H02P3/04—Means for stopping or slowing by a separate brake, e.g. friction brake or eddy-current brake
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2121/00—Type of actuator operation force
    • F16D2121/14—Mechanical
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2121/00—Type of actuator operation force
    • F16D2121/18—Electric or magnetic
    • F16D2121/20—Electric or magnetic using electromagnets
    • F16D2121/22—Electric or magnetic using electromagnets for releasing a normally applied brake
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00—Conversion of dc power input into dc power output
    • H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
    • H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
    • H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
    • H02M3/1555—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only for the generation of a regulated current to a load whose impedance is substantially inductive
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
    • H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
    • H02M7/12—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/21—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M7/217—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only

Definitions

  • the present invention relates to a drive system and to a method for operating a drive system.
  • a brake coil of an electromagnetically operable brake is actuated by a direct current in order to release or apply the brake.
  • Example embodiments of the present invention provide for an efficient mode of operation of the brake.
  • a drive system includes an electromagnetically operable brake, an electric motor, e.g., a three-phase motor, and an electronic circuit.
  • the brake includes an energizable coil, e.g., a brake coil, and the electronic circuit includes a rectifier, an upper controllable semiconductor switch, a freewheeling diode, and a varistor.
  • a direct voltage provided by a rectifier is able to be made available by closing or by a pulse-width modulated actuation of an upper controllable semiconductor switch of the coil, and by opening the upper controllable semiconductor switch, a current driven by the coil in a de-excitation of the coil is freewheeling and/or flowing through the freewheeling diode and the varistor or through a component connected in parallel with the varistor.
  • the brake is able to be operated in an effective manner. This is because, due to the power supply controlled via the upper semiconductor switch, the brake can be monitored for wear under defined conditions since the voltage initially supplied to the brake is controllable to a voltage value.
  • a rapid de-excitation of the brake is possible by using a varistor, that is to say, a component which initially exhibits high resistance at low voltages and then becomes low-resistive at a high voltages.
  • a component which may be arranged as a semiconductor switch and thus is controllable to an even lower resistance range, is provided in parallel with the varistor. With the aid of a closed semiconductor switch, the varistor is substantially able to be short-circuited.
  • the coil together with a shunt resistor and the upper controllable semiconductor switch forms a series circuit, which is supplied from the direct voltage.
  • This has the advantage that the current is readily acquirable.
  • the freewheeling diode together with the varistor forms a series circuit, which is connected in parallel with the series circuit formed by the coil and the shunt resistor.
  • the component is a lower controllable semiconductor switch, e.g., the current driven by the coil during its de-excitation is fully or substantially flowing through the lower semiconductor switch when the lower controllable semiconductor is closed, i.e., the varistor, for example, remaining highly resistive.
  • the lower controllable semiconductor switch e.g., the current driven by the coil during its de-excitation is fully or substantially flowing through the lower semiconductor switch when the lower controllable semiconductor is closed, i.e., the varistor, for example, remaining highly resistive.
  • the freewheeling diode is connected to the lower potential of the direct voltage via a first connection. This is considered advantageous insofar as the lower semiconductor switch is protected via the freewheeling diode.
  • a further freewheeling diode is situated between the collector and emitter of the respective semiconductor switch so that the buildup of high voltages during the switching of the semiconductor switch is avoided.
  • the shunt resistor is connected via a first connection both to the lower semiconductor switch and to the upper semiconductor switch. This has the advantage that the shunt resistor is connected to the zero potential so that no galvanic decoupling is required between the control electronics and the shunt resistor.
  • a control electronics generates the actuation signal for the upper semiconductor switch as well as the actuation signal for the lower semiconductor switch and acquires the direct voltage and also the voltage dropping at the shunt resistor, e.g., as current flowing through the coil, e.g., the voltage between the upper potential of the direct voltage and a zero potential is acquired in down-divided form with the aid of a voltage splitter which, for example, includes two resistors.
  • the control electronics controls the operation of the brake.
  • the respective semiconductor switch is operated.
  • the lower semiconductor switch is actuated only if corresponding parameters for a rapid de-excitation are specified in the initial operation of the drive system.
  • the control electronics has a first controller, which controls the voltage, acquired directly or in down-divided form at the coil, to a voltage value, e.g., a setpoint value, in that the first controller has as the controlled variable the pulse-width modulation ratio of the pulse-width-modulated actuation signal of the upper semiconductor switch.
  • a voltage value e.g., a setpoint value
  • the first controller has as the controlled variable the pulse-width modulation ratio of the pulse-width-modulated actuation signal of the upper semiconductor switch.
  • the control electronics supplies a voltage value to the coil in that a pulse-width modulation ratio of the actuation signal for the upper semiconductor switch is determined as a function of the acquired, down-divided voltage, e.g., between the upper potential of the direct voltage of the rectifier and the zero potential, the voltage thus being controlled, for example.
  • a pulse-width modulation ratio of the actuation signal for the upper semiconductor switch is determined as a function of the acquired, down-divided voltage, e.g., between the upper potential of the direct voltage of the rectifier and the zero potential, the voltage thus being controlled, for example.
  • control electronics has a second controller, which controls the current, acquired with the aid of the shunt resistor, to a setpoint current in that the second controller has the pulse-width modulation ratio of the pulse-width-modulated actuation signal of the upper semiconductor switch as a controlled variable.
  • control electronics has a changeover device which particularly activates either the first or the second controller and deactivates the respective other. This offers the advantage of providing a diagnosis of the state of the brake pad on the one hand and an efficient continuous operation on the other hand.
  • the control electronics includes a device for determining the wear of a brake pad of a brake pad supporting plate of the brake, to which the characteristic of the current acquired with the aid of the shunt resistor is conveyed and which has a device for determining a sudden change in the characteristic and the current amount when the sudden change occurs.
  • a connection of the shunt resistor is electrically connected to the zero potential, the control electronics, for example, being supplied from a supply voltage whose lower potential is the zero potential, e.g., such that the voltage dropping at the shunt resistor is conveyed directly to the control electronics, that is to say, especially without a galvanic separation, e.g., in order to acquire the current flowing through the coil.
  • This has the advantage of not requiring a galvanic separation.
  • the voltage applied at the coil is controlled to a voltage value, e.g., in that a pulse-width modulation ratio is determined as a function of a voltage acquired in a down-divided manner, e.g., between an upper potential of the direct voltage supplied by a rectifier and a zero potential, for the particular pulse-width-modulated actuation signal that is conveyed to an upper semiconductor switch so that the voltage applied at the coil reaches the voltage value.
  • the current flowing through the coil is acquired, e.g., with the aid of a shunt resistor, and controlled to a setpoint value, e.g., by determining a pulse-width modulation ratio for the particular pulse-width-modulated actuation signal that is conveyed to an upper semiconductor switch so that the current flowing through the coil is controlled to the setpoint value.
  • the voltage supplied by the rectifier is made available to the coil for a period of time (T 1 ). This is considered advantageous insofar as the coil current is able to be built up as rapidly as possible in the beginning.
  • the characteristic of the current flowing through the coil is acquired during the first method step, and the associated value of the current flowing through the coil during a sudden change or drop in the time characteristic is determined. This has the advantage that the sudden drop of the current characteristic when the armature disk is raised is readily determined.
  • the current is acquired with the aid of a shunt resistor, which lies at the same potential, e.g., a zero potential, as the signal electronics of the drive system carrying out the control or regulation.
  • a shunt resistor which lies at the same potential, e.g., a zero potential, as the signal electronics of the drive system carrying out the control or regulation.
  • FIG. 1 is a schematic circuit diagram of a brake actuation of a drive system according to an example embodiment of the present invention.
  • the drive system has an electric motor M and an electromagnetically operable brake, the brake torque generated by the brake being conveyed to the rotor of the electric motor.
  • the brake includes a coil having inductivity L which in an energization attracts an armature disk counter to the spring force generated by a spring element so that a brake pad support plate, which is connected to the rotor in a torsionally fixed but axially displaceable manner, is able to disengage from a brake surface.
  • the brake surface is firmly connected to the coil.
  • the armature disk is connected to the coil in a torsionally fixed but axially displaceable manner.
  • the spring element pushes the armature disk against the brake pad support plate, which is thereby pressed onto the brake surface.
  • the brake surface is situated on the side of the brake pad support plate facing away from the armature disk.
  • the coil thus has to be energized in order to release the brake, whereas the coil must be deenergized, i.e., de-excited, to apply the brake.
  • de-excited i.e., the dissipation of the current flowing through the coil.
  • the brake actuation has a rectifier 1 , which is supplied from two phases of a three-phase voltage network (L 1 , L 2 ).
  • rectifier 1 supplies at its DC-voltage-side connection a direct voltage, which may be called an intermediate circuit voltage and has an upper potential Uz+ as well as a lower potential Uz ⁇ .
  • a series connection which includes an upper semiconductor switch T 1 and a lower semiconductor switch T 2 and a diode D 1 , is supplied from the direct voltage.
  • Upper semiconductor switch T 1 is supplied between upper potential Uz+ of the direct voltage and electrical ground, i.e., zero potential.
  • Lower semiconductor switch T 2 is situated in series with diode D 1 , this series connection being supplied between lower potential Uz ⁇ of the direct voltage and electrical ground, i.e., zero potential.
  • Inductivity L of the coil is supplied from the voltage present between lower potential Uz ⁇ of the direct voltage and electrical ground, i.e., zero potential, and a shunt resistor Rs is situated in the supply line of inductivity L, which is connected via its first connection to electrical ground, e.g., zero potential, and to inductivity L via the other connection.
  • a freewheeling diode is connected in parallel with each of the two semiconductor switches (T 1 , T 2 ).
  • a control electronics 2 arranged as a signal electronics generates the actuation signals ( 3 , 6 ) for the two semiconductor switches T 1 and T 2 .
  • a voltage divider which is formed by a series connection that includes a first resistor R 1 and a second resistor R 2 .
  • the down-divided voltage is acquired.
  • Control electronics 2 generates an actuation signal 3 for upper semiconductor switch T 1 , which is pulse-width-modulated such that it supplies a voltage value to the coil for energizing the coil, the voltage value being smaller than the amount of the voltage between upper potential Uz+ and electrical ground.
  • This voltage value is 200 Volt, for instance, regardless of the direct voltage actually made available by the rectifier. In this manner, an operation in a broad voltage range is possible in different three-phase current networks.
  • the voltage value always remains the same, however. This allows for a diagnosis of the brake when initiating the release operation. This is because after the brake is activated, i.e., the voltage value is supplied, the characteristic of the current acquired with the aid of the shunt resistor is monitored. As soon as the armature disk starts to move, the characteristic exhibits a sudden change or brief drop because the inductivity of the coil changes in the process.
  • the characteristic is able to be determined in the most precise manner possible, e.g., the current value of the abrupt change, and on that basis, the value of the air gap to be overcome by the armature disk, which represents a measure of the wear of the brake pads of the brake pad support plate.
  • a varistor V 1 is connected in parallel with lower semiconductor switch T 2 .
  • upper semiconductor switch T 1 When upper semiconductor switch T 1 is opened for the de-excitation, the current of the coil freewheels via varistor V 1 .
  • the field generated by the coil is therefore decays and the spring element pushes the armature disk onto the brake pad support plate so that it is pressed against the brake surface.
  • control electronics actuates lower semiconductor switch T 2 so that it closes and the current of the coil thus flows via the transistor and the magnetic field consequently decays.
  • lower semiconductor switch T 2 may remain open for the de-excitation of the coil or, alternatively, be closed for the faster de-excitation.
  • control electronics 2 Since shunt resistor Rs is connected to ground potential via its first connection, control electronics 2 is able to acquire the voltage dropping at the shunt resistor and can thus determine the current flowing through the coil without a galvanic separation.
  • upper semiconductor switch T 1 is closed for the release of the coil, but lower semiconductor switch T 2 is opened beforehand in all instances.
  • control electronics 2 acquires the down-divided voltage and a pulse-width modulation ratio is determined and a correspondingly modulated actuation signal is conveyed to upper semiconductor switch T 1 .
  • a very precise control of the voltage value is therefore possible.
  • the voltage value is supplied in a controlled fashion with the aid of the adapted pulse-width modulation ratio.
  • a current control is performed.
  • a linear controller e.g., a PI controller, controls the current acquired with the aid of shunt resistor Rs to a setpoint value by using the pulse-width modulation ratio as the set value once again, thereby providing a corresponding voltage to the coil.
  • the described diagnosis i.e., the monitoring of the current characteristic and the current intensity in the abrupt change in the current characteristic, that is to say, the raising of the armature disk, is carried out so that the wear of the brake is able to be determined.
  • upper semiconductor switch T 1 may be permanently closed during the release, i.e., closed without interruption, for a period of time to begin with.
  • the highest available voltage is therefore effective in order to induce the steepest possible current increase.
  • the time period is selected to be so short that the sudden change in the current characteristic cannot be reached.
  • the voltage value is provided for the first time segment by the described current control and the current regulation is carried out again in the second time segment.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Stopping Of Electric Motors (AREA)
  • Braking Arrangements (AREA)
US17/424,655 2019-01-21 2020-01-13 Drive system and method for operating a drive system Active 2040-06-24 US11722076B2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102019000330.6 2019-01-21
DE102019000330 2019-01-21
PCT/EP2020/025010 WO2020151914A1 (de) 2019-01-21 2020-01-13 Antriebssystem und verfahren zum betreiben eines antriebssystems mit elektromagnetisch betätigbrer bremse

Publications (2)

Publication Number Publication Date
US20220131484A1 US20220131484A1 (en) 2022-04-28
US11722076B2 true US11722076B2 (en) 2023-08-08

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Application Number Title Priority Date Filing Date
US17/424,655 Active 2040-06-24 US11722076B2 (en) 2019-01-21 2020-01-13 Drive system and method for operating a drive system

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US (1) US11722076B2 (de)
EP (1) EP3915185A1 (de)
CN (1) CN113330671B (de)
DE (1) DE102020000127A1 (de)
WO (1) WO2020151914A1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022003389B3 (de) 2022-09-14 2023-04-27 Sew-Eurodrive Gmbh & Co Kg Verfahren zum Bestimmen eines Verschleißes von Bremsbelägen einer elektromagnetisch betätigbaren Bremse und Elektromotor mit elektromagnetisch betätigbarer Bremse und Signalelektronik zur Durchführung eines solchen Verfahrens

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6291951B1 (en) * 2000-03-21 2001-09-18 Valiant Machine & Tool Inc. Holding brake control circuit for servo-motor
JP2003130096A (ja) * 2002-09-30 2003-05-08 Sanyo Denki Co Ltd モータ用ブレーキの寿命判定方法及び装置
DE102007040423A1 (de) * 2007-08-25 2009-02-26 Sew-Eurodrive Gmbh & Co. Kg Verfahren zum Betreiben eines umrichtergespeisten Elektromotors, umrichtergespeister Elektromotor und Verfahren zum Betreiben einer Anlage
US20110108386A1 (en) * 2009-11-06 2011-05-12 Kone Corporation Apparatus and method for variable torque braking of escalators and moving walkways
DE102012008547A1 (de) * 2011-06-14 2012-12-20 Sew-Eurodrive Gmbh & Co. Kg Verfahren zum Überwachen einer elektromagnetisch betätigbaren Bremse und Vorrichtung zur Durchführung des Verfahrens
EP2747287A1 (de) * 2012-12-18 2014-06-25 Siemens Aktiengesellschaft Schaltungsanordnung zum Bremsen einer sich bewegenden Masse beim Abschalten eines elektromechanischen Schaltgeräts mit einer induktiven Last
US8847523B2 (en) * 2010-11-29 2014-09-30 Aktiebolaget SLF Electronic drive having an electro-mechanical brake

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI20031647A0 (fi) * 2003-11-12 2003-11-12 Kone Corp Hissin jarrun ohjauspiiri
CN100474478C (zh) * 2004-08-10 2009-04-01 三菱电机株式会社 直流电压驱动型电磁接触器的驱动电路及功率变换装置
DE202007019003U1 (de) * 2007-06-05 2010-03-04 Chr. Mayr Gmbh + Co. Kg Gleichrichter zum Speisen einer Spule
CN108964542A (zh) * 2018-08-31 2018-12-07 东南大学 一种宽电压供电的节能型电磁制动控制器

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6291951B1 (en) * 2000-03-21 2001-09-18 Valiant Machine & Tool Inc. Holding brake control circuit for servo-motor
JP2003130096A (ja) * 2002-09-30 2003-05-08 Sanyo Denki Co Ltd モータ用ブレーキの寿命判定方法及び装置
DE102007040423A1 (de) * 2007-08-25 2009-02-26 Sew-Eurodrive Gmbh & Co. Kg Verfahren zum Betreiben eines umrichtergespeisten Elektromotors, umrichtergespeister Elektromotor und Verfahren zum Betreiben einer Anlage
US20110108386A1 (en) * 2009-11-06 2011-05-12 Kone Corporation Apparatus and method for variable torque braking of escalators and moving walkways
US8847523B2 (en) * 2010-11-29 2014-09-30 Aktiebolaget SLF Electronic drive having an electro-mechanical brake
DE102012008547A1 (de) * 2011-06-14 2012-12-20 Sew-Eurodrive Gmbh & Co. Kg Verfahren zum Überwachen einer elektromagnetisch betätigbaren Bremse und Vorrichtung zur Durchführung des Verfahrens
EP2747287A1 (de) * 2012-12-18 2014-06-25 Siemens Aktiengesellschaft Schaltungsanordnung zum Bremsen einer sich bewegenden Masse beim Abschalten eines elektromechanischen Schaltgeräts mit einer induktiven Last

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
International Search Report issued in corresponding International Application No. PCT/EP2020/025010, dated May 6, 2020, pp. 1-2, English Translation.

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EP3915185A1 (de) 2021-12-01
WO2020151914A1 (de) 2020-07-30
US20220131484A1 (en) 2022-04-28
CN113330671B (zh) 2024-04-05
CN113330671A (zh) 2021-08-31
DE102020000127A1 (de) 2020-07-23

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